Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d5ccd79b2c011a…

MALICIOUS

PDF

75.8 KB Created: 2021-03-03 01:17:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: f802be29812286e3d9e215c355ef60f4 SHA-1: d37b5458f559ffa8ef0f3d7471e3cdb274d2e381 SHA-256: c0d5ccd79b2c011ae492513b7c395fbd8dcffc24a71b087e592b65ad18656db8
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://druttle.ru/strik?utm_term=omnisphere+2+requirements', suggests the document is designed to redirect users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://druttle.ru/strik?utm_term=omnisphere+2+requirements PDF link annotation
    • https://cdn.sqhk.co/gabazumad/OhdEqLv/77725336543.pdfIn PDF document text
    • https://cdn.sqhk.co/piwizogir/jd5SWuI/48111015121.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/fqhjjji/passport_photo_hair_colour_change.pdfIn PDF document text
    • https://cdn.sqhk.co/nugopanage/oN7coge/sopunazevi.pdfIn PDF document text
    • https://cdn.sqhk.co/ritafase/ihiheif/rise_of_kingdoms_codes_october_2020.pdfIn PDF document text
    • http://hookup154.space/how_many_stages_of_rheumatoid_arthritis3kzgd.pdfIn PDF document text
    • https://cdn.sqhk.co/keropolor/dicjfii/fairy_party_ideas_for_7_year_olds.pdfIn PDF document text
    • http://tevutubiwij.getenjoyment.net/echo_srm_230_owners_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/jubawiwa/fENgcgg/cluck_night_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwefuxab/siaHrie/8019809119.pdfIn PDF document text
    • http://polikarmonolit.ru/465830129586flbc.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/gfxxvgd/true_fear_forsaken_souls_1_full_version_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fogunedevare/gjggghf/smashbits_undertale_flirting_route.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/20666268492.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/cbse_class_10_science_chapter_11_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/cookie_sheet_pan_with_rack.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8F 5100 bytes
SHA-256: aea239c7e4fbb7481e57970c62403dea826834d37c1f4eef91d944a56d7ed423
font_01_sfnt_off0000fec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC3 10324 bytes
SHA-256: ae193687f229b98da19a90bb9dfde13f8004f891d531b2f3f2618e9fb0bf15da

Open this report in the interactive analyzer, or submit your own file for analysis.